3239989 has 2 divisors, whose sum is σ = 3239990. Its totient is φ = 3239988.

The previous prime is 3239983. The next prime is 3240019. The reversal of 3239989 is 9899323.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2007889 + 1232100 = 1417^2 + 1110^2 .

It is a cyclic number.

It is not a de Polignac number, because 3239989 - 2¹⁵ = 3207221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3239983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1619994 + 1619995.

It is an arithmetic number, because the mean of its divisors is an integer number (1619995).

Almost surely, 2^3239989 is an apocalyptic number.

It is an amenable number.

3239989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3239989 is an equidigital number, since it uses as much as digits as its factorization.

3239989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 104976, while the sum is 43.

The square root of 3239989 is about 1799.9969444419. The cubic root of 3239989 is about 147.9725570008.

The spelling of 3239989 in words is "three million, two hundred thirty-nine thousand, nine hundred eighty-nine".